NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1932660982
Verify on CMS → Katherine Mustafa
Endocrinology, Diabetes & Metabolism Physician in Roanoke, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,871 in Endocrinology, Diabetes & Metabolism Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
431
Medicare Part D claims · 69 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
58%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Katherine Mustafa filed 431 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in Roanoke, Virginia, prescribing 58% generic.
- 431
- Part D claims, 2023
- 58%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Katherine Mustafa's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
431 Top 38% higher than 62% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Katherine Mustafa practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Katherine Mustafa?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
431 84% vs specialty avg
Specialty distribution in Virginia
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Virginia providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Endocrinology, Diabetes & Metabolism Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Katherine Mustafa appears in the CMS NPPES registry as an Endocrinology, Diabetes & Metabolism Physician provider at 3 RIVERSIDE CIR, Roanoke, VA, 24016, with a listed phone of (540) 224-5170. NPI 1932660982 was issued on 03/30/2019.
Medicare Part D records for calendar year 2023 show 431 prescription claims written by this provider, covering 69 Medicare beneficiaries and totaling roughly $182K in drug spend, split 34% brand-name and 58% generic by claim count.
Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,871 enrolled providers across 54 states and an average of 2,639 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1932660982 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Gender | Female |
| NPI Issued | 03/30/2019 |
Hospital and facility affiliations
Facilities where Katherine Mustafa bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Carilion Medical Center
★★★☆☆ 3/5
Roanoke, VA
Acute Care Hospitals
CMS CCN: 490024
Carilion Healthcare Corporation
Daleville, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Katherine Mustafa - brand share 34.0%
Endocrinology, Diabetes & Metabolism Physician average
34% brand-name claims vs 58% generic, on 431 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
431
Total Claims
$182K
Total Drug Cost
69
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 991
- Total Day Supply
- 29,430
- Brand vs Generic
- 34% brand / 58% generic
- Brand Drug Cost
- $171K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 2.29
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 23, 65-74: 28, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Katherine Mustafa prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
36 claims
- Metformin Hcl
Metformin Hcl
28 claims
- Alendronate Sodium
Alendronate Sodium
25 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
24 claims
- Atorvastatin Calcium
Atorvastatin Calcium
22 claims
- Metformin Hcl Er
Metformin Hcl Er
22 claims
- Synthroid
Synthroid
21 claims
- Hydrocortisone
Hydrocortisone
16 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 36 |
| Metformin Hcl | 28 |
| Alendronate Sodium | 25 |
| Rosuvastatin Calcium | 24 |
| Atorvastatin Calcium | 22 |
| Metformin Hcl Er Metformin Hcl | 22 |
| Synthroid Levothyroxine Sodium | 21 |
| Hydrocortisone | 16 |
| Teriparatide | 14 |
| Novolog Flexpen Insulin Aspart | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in VA →
All providers in Virginia →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Katherine Mustafa fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
7,871
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider
Katherine Mustafa's 431 claims are below the specialty average of 2,639.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Mustafa.
Dr. Mustapha Abdul-Rahman
MD
Winchester, VA
Dr. Robert Adler
M.D.
Richmond, VA
Dr. Samina Afreen
MD
Charlottesville, VA
Dr. Miriam Ahmad
M.D.
Falls Church, VA
Dr. Ahmed Al Dabbagh
MBCHB
Suffolk, VA
Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Endocrinology, Diabetes & Metabolism Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Katherine Mustafa's specialty? ▼
Katherine Mustafa specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Roanoke, Virginia.
How much does Katherine Mustafa prescribe under Medicare Part D? ▼
In 2023, Katherine Mustafa wrote 431 Medicare Part D claims totaling $182K in drug costs for 69 beneficiaries.
Where is Katherine Mustafa located? ▼
Katherine Mustafa is located at 3 RIVERSIDE CIR, Roanoke, VA, 24016. Phone: (540) 224-5170.
What is Katherine Mustafa's NPI number? ▼
Katherine Mustafa's National Provider Identifier (NPI) is 1932660982, issued on 03/30/2019.
Does Katherine Mustafa prescribe more brand-name or generic drugs? ▼
Katherine Mustafa's prescribing is 34% brand-name and 58% generic drugs by claim count, with $171K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,871 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Katherine Mustafa prescribe most often? ▼
Based on 2023 Medicare Part D data, Katherine Mustafa's most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katherine Mustafa accept Medicare? ▼
Katherine Mustafa appears in CMS Medicare data with 431 Part D claims and 69 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Mustafa's credentials? ▼
Katherine Mustafa's NPI is 1932660982. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.